Hi,
I'm currently writting a driver with up to 8 pcm devices, so I turned on
"Dynamic device file minor numbers" option. But when I try to list devices
through aplay or a record (which are calling ioctl with cmd
SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE) I can only list devices from 0 to 7. This is
due to this code :
linux/sound/core/pcm.c l.64
------------------------------
case SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE:
{
int device;
if (get_user(device, (int __user *)arg))
return -EFAULT;
mutex_lock(&register_mutex);
device = device < 0 ? 0 : device + 1;
while (device < SNDRV_PCM_DEVICES) {
if (snd_pcm_search(card, device))
break;
device++;
}
if (device == SNDRV_PCM_DEVICES)
device = -1;
mutex_unlock(&register_mutex);
if (put_user(device, (int __user *)arg))
return -EFAULT;
return 0;
}
------------------------------
because SNDRV_PCM_DEVICES is defined to 8 and do not change even if I selected
"Dynamic device file minor numbers" option.
Is there anything I missed ?